Research Engineer - Model Architectures

zyphra· R&D - Engineering
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📍 San FranciscoFullTime

About this role

Zyphra is an artificial intelligence company based in San Francisco, California.

The Role:

As a Research Engineer - Model Architectures, you will be a core contributor to Zyphra’s AI Architecture Research Team. This will involve designing and rigorously testing novel model architectures and training methodologies, with a focus on improving core modeling capabilities (e.g., loss per flop or loss per parameter) and addressing fundamental bottlenecks in contemporary models. You will also work extremely closely with our pre-training team, who will integrate your insights into our next-generation models.

What We're Looking For / Requirements:

  • Strong research taste and intuition

  • The ability to work through a research project from conception to execution to write-up

  • Strong implementation and prototyping ability can take an idea from conception to experimentation extremely quickly

  • The ability to work well and cooperate with others in a high-paced research setting

  • Curiosity, interest, and joy in understanding intelligence.

Qualifications / Additional Skills:

  • Previous experience with long-term memory, RAG/retrieval systems, dynamic/adaptive computation, and alternative approaches to credit assignment

  • Experience with reinforcement learning, control theory, and signal processing

  • Generally, a joy in inventing and seriously assessing ‘crazy’ ideas, and the ability to have a unique perspective on things

  • Understanding of modern training pipelines and the hardware requirements to design efficient architectures for GPU hardware

  • Strong grasp of proper experimental methodology for running rigorous ablations and other hypothesis testing

  • High proficiency with PyTorch and Python.

  • Strong ability to jump into large pre-existing codebases and rapidly get up to speed and become productive

  • Previously published machine learning research in well-respected venues

  • Postgraduate degree in a scientific subject (Computer Science, EE/EECS, Math, Physics)

Why Work at Zyphra:

  • Our research methodology is to make grounded, methodical steps toward ambitious goals. Both deep research and engineering excellence are equally valued

  • We strongly value new and crazy ideas and are very willing to bet big on new ideas

  • We move as quickly as we can; we aim to minimize the bar to impact as low as possible

  • We all enjoy what we do and love discussing AI

Benefits and Perks:

  • Comprehensive medical, dental, vision, and FSA plans

  • Competitive compensation and 401(k) plan

  • Relocation and immigration support on a case-by-case basis

  • In-office snacks and meals provided

  • Unlimited PTO and company holidays

  • In-person team in San Francisco with a collaborative, high-energy environment

Frequently Asked Questions

Is the salary disclosed for the Research Engineer - Model Architectures position at zyphra?
The salary for this Research Engineer - Model Architectures role at zyphra is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Research Engineer - Model Architectures position at zyphra located?
This Research Engineer - Model Architectures role at zyphra is based in San Francisco. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Research Engineer - Model Architectures role at zyphra full-time or part-time?
This is listed as a FullTime position. It is posted as a Research Engineer - Model Architectures role in the R&D - Engineering department at zyphra.
Which team or department does the Research Engineer - Model Architectures at zyphra belong to?
This Research Engineer - Model Architectures position is part of the R&D - Engineering department at zyphra. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Research Engineer - Model Architectures position at zyphra?
Click the "Apply Now" button on this page. You will be redirected to zyphra's official application portal hosted on ashby where you can submit your application directly.
When was the Research Engineer - Model Architectures job at zyphra posted?
This Research Engineer - Model Architectures position at zyphra was posted on Mar 17, 2026. Apply as soon as possible — early applications are often reviewed first.
Research Engineer - Model Architectures
zyphra
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